A professor went to a website for rating professors and looked up the quality rating and also the "easiness" of the six full-time professors in one department. The ratings are 1 Quality Easiness i: (Iowest quality) to 5 (highest quality) and 'l (hardest) to 5 (easiest). The numbers given are averages for each professor. Assume the trend is linear. nd the correlation, and 4.9 3.5 comment on what it means. 4_5 3_3 4.4 3.5 4.1 2.3 3.9 1 9 3 4 2 2 Calculate the correlation. r= |:| (Round to three decimal places as needed.)